Oak Harbor, WA - Home Safety Score unavailable
2 ZIP codes · 5 water systems · Updated
Data: EPA SDWIS
Oak Harbor Water: The Quick Version
- Your city's water systems recorded 152 violations since 2021.
- Average of reported 90th-percentile lead results: 0.0261 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average.
- Estimated remediation: $3,540 per household.
- Health risk index (ZipCheckup composite of CDC data): 12.18.
Water Systems Serving Oak Harbor
Among 5 systems linked to Oak Harbor, WA, the 3 biggest by population served appear below.
Overview
We track home safety data for 2 ZIP codes in Oak Harbor, Washington, covering 5 community water systems serving approximately 42,516 people. The EPA snapshots used for this build directly map water systems to 2 of 2 ZIP codes.
1 of 2 ZIP codes with a reported violation count in the available EPA record (50%) have recorded EPA violations. 41 health-based violations appear in the available health breakdown.
Water Sources
Oak Harbor water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0261 mg/L (exceeds EPA action level) (EPA action level: 0.015 mg/L)
- 1 of 2 ZIP codes with known status exceed the EPA lead action level
Radon Risk
2 of 2 ZIP records with known zones are in EPA Radon Zone 3.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 108 | 1 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 54 | 1 |
| Revised Total Coliform Rule | Microbiological | 36 | 1 |
| Consumer Confidence Rule | Reporting | 30 | 1 |
| Nitrate | Inorganic | 28 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 98277 | — | 152 | 41 | City of Oak Harbor |
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 98278 | — | Naval Air Station/whidbey Island | 16,595 |
All ZIP Codes in Oak Harbor
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
CDC Health Data for Oak Harbor
Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Key Contaminants Detected in Oak Harbor
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Oak Harbor: Remediation Cost in Perspective
Because the median home value in Oak Harbor is large relative to the estimated cost of remediation, the ratio between them stays at or below 1%; that is a statement about two area-level numbers, not a quote for a particular house or a judgment about what an owner can pay.
Estimated remediation costs in Oak Harbor can be compared with local home values. The $2,260–$5,420 estimated range can be set against the median property value; actual costs vary by home. Home values are 3% below the Washington average.
Protecting Children from Lead in Oak Harbor
Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.
1 ZIP code (50% of the city's ZIP records) is served by a water system whose 90th-percentile lead result exceeds the EPA action level of 0.015 mg/L.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical Flood-Claim Evidence for Oak Harbor
Historical NFIP data for Oak Harbor contains 39 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $22,523. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The $3,540 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.
Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.
Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.
Deep Dive Reports
Detailed analysis for Oak Harbor, WA